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Commitments and Contingencies (Details) - USD ($)	Dec. 06, 2019	Oct. 23, 2019	Jun. 05, 2019	Apr. 04, 2019	Mar. 31, 2020	Dec. 31, 2019	Dec. 31, 2016	Dec. 21, 2016	Jan. 04, 2016
Related Party Transaction [Line Items]
Related party promissory note					$ 112,666,000	$ 112,666,000
Litigation settlement		$ 16,500,000
Damages sought	$ 2,900,000		$ 2,300,000	$ 3,000,000
Insurance recoveries					330,000	16,627,000
Affiliated Entity \| Promissory Notes With NantCapital
Related Party Transaction [Line Items]
Related party promissory note					138,597,000	136,893,000			$ 112,666,000
Convertible Debt
Related Party Transaction [Line Items]
Face value of debt					$ 107,000,000	$ 107,000,000	$ 107,000,000	$ 107,000,000
Interest rate on debt							5.50%	5.50%